Vampire was a fanzine published by Joe Kennedy, later known as X. J. Kennedy, in the 1940s in New Jersey, U.S.A.
Kennedy published the first issue of Vampire in 1945. This issue was. 5.5 X 8.5. The next eight issues were all 8.5 X 11, and produced by mimeograph. The final ninth issue appeared in 1947.
During this period, Vampire has been cited by writers and fan historians as being popular and a focal point of the period immediately following WWII. Perhaps it didn't hurt that Joe Kennedy was also a prolific letter writer to other zines.